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Professor KANG Kisuk Unravels Mystery of Sodium-Oxygen Batteries

  • February 21, 2016
  • Hit 3566
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Professor KANG Kisuk
Professor KANG Kisuk

Professor KANG Kisuk (Department of Materials Science and Engineering) has discovered the reason behind the low performance of sodium-oxygen batteries. Conflicting observations with different discharge products have inhibited the understanding of precise reactions in sodium-oxygen batteries. Professor Kang discovered that the competition between the electrochemical and chemical reactions in sodium–oxygen batteries leads to the dissolution and ionization of sodium superoxide, liberating superoxide anion and triggering the formation of sodium peroxide dihydrate (Na2O2·2H2O). On the formation of Na2O2·2H2O, the charge overpotential of sodium–oxygen cells significantly increases. This research was published in Nature Communications on February 19 under the title of “Dissolution and ionization of sodium superoxide in sodium–oxygen batteries.”

Summary by LEE Hee Un, SNU English Editor, gurume0221@snu.ac.kr
Proofread by Melora Brett Briana Johnson, morningcalm2@gmail.com

List of postings
NO. TITLE DATE HIT
205 Professor KANG Kisuk Unravels Mystery of Sodium-Oxygen Batteries Feb. 21, 2016 3566
204 Professor SEO Jeongsun Takes Part in Genome Asia 100K Initiative Feb. 20, 2016 3043
203 SNU Lattice Gauge Theory Research Center Finds New Physics Beyond the Standard Model Jan. 30, 2016 2808
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